Check out Ministry of Defense’s Weekly Guild Activities Schedule effective Patch 8.3 launch!!

Sunday 6pm EST: Old Raids and Achievements
Sunday 8pm EST: PVP Rated Battlegrounds
Tuesday 8pm EST: PVP for Fun!
Wednesday 8pm EST: PVP Islands
Wednesday 9pm EST: Rated Arenas
Thursday/Friday 8pm EST: Mythic Raid Team Progression
Saturday 5pm/Monday 8pm EST: Heroic Raid Team Progression